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SubjectRe: [v3 PATCH 1/8] sched: coredump.h: clarify the use of MMF_VM_HUGEPAGE
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On 4/4/22 22:02, Yang Shi wrote:
> MMF_VM_HUGEPAGE is set as long as the mm is available for khugepaged by
> khugepaged_enter(), not only when VM_HUGEPAGE is set on vma. Correct
> the comment to avoid confusion.
>
> Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
> Acked-by: Song Liu <song@kernel.org>
> Signed-off-by: Yang Shi <shy828301@gmail.com>

Acked-by: Vlastmil Babka <vbabka@suse.cz>

> ---
> include/linux/sched/coredump.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
> index 4d9e3a656875..4d0a5be28b70 100644
> --- a/include/linux/sched/coredump.h
> +++ b/include/linux/sched/coredump.h
> @@ -57,7 +57,8 @@ static inline int get_dumpable(struct mm_struct *mm)
> #endif
> /* leave room for more dump flags */
> #define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */
> -#define MMF_VM_HUGEPAGE 17 /* set when VM_HUGEPAGE is set on vma */
> +#define MMF_VM_HUGEPAGE 17 /* set when mm is available for
> + khugepaged */
> /*
> * This one-shot flag is dropped due to necessity of changing exe once again
> * on NFS restore

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